公开(公告)号：US20070157673A1

公开(公告)日：2007-07-12

申请号：US11583270

申请日：2006-10-19

申请人： Myung-Hwan Pyo ,  Jin-Seong Yang ,  Mun-Hyun Do ,  Jin-Han Kim

发明人： Myung-Hwan Pyo ,  Jin-Seong Yang ,  Mun-Hyun Do ,  Jin-Han Kim

IPC分类号： C03B37/07 ,  C03B37/018 ,  C03B37/01

CPC分类号： C03B37/014

摘要： Disclosed are a method for fabricating an optical fiber preform and a method for fabricating an optical fiber using the optical fiber preform. The method for fabricating the optical fiber preform including the steps of: (a) growing a first soot preform on a starting member by a soot deposition; (b) dehydrating the first soot preform; (c) sintering the first dehydrated soot preform to obtain a first glassed optical fiber perform; (e) growing an over-clad soot layer on the first optical fiber preform by soot deposition to obtain a second soot preform; and (f) sintering the second soot preform so as to obtain a second optical fiber preform which is glassed, wherein an average density of the first soot preform is substantially within a range of 0.19˜0.30 g/cc, and the average density of the over-clad soot layer is substantially within a range of 0.5˜0.75 g/cc.

摘要翻译： 公开了一种用于制造光纤预制件的方法和使用该光纤预制件制造光纤的方法。 制造光纤预制棒的方法包括以下步骤：（a）通过烟灰沉积在起始构件上生长第一烟炱预制件; （b）使第一烟炱预制件脱水; （c）烧结第一脱水烟炱预制件以获得第一玻璃纤维的性能; （e）通过烟灰沉积在第一光纤预制件上生长过度覆盖的烟灰层，以获得第二烟炱预制件; 和（f）烧结所述第二烟炱预制件，以获得玻璃化的第二光纤预制件，其中所述第一烟炱预制件的平均密度基本上在0.19〜0.30g / cc的范围内， 过涂层烟灰层基本上在0.5〜0.75g / cc的范围内。

公开(公告)号：US20070151298A1

公开(公告)日：2007-07-05

申请号：US11489959

申请日：2006-07-20

申请人： Jin-Haing Kim ,  Ho-Jin Lee ,  Mun-Hyun Do ,  Jae-Hyeon Seong ,  Yun-Ho Kim

发明人： Jin-Haing Kim ,  Ho-Jin Lee ,  Mun-Hyun Do ,  Jae-Hyeon Seong ,  Yun-Ho Kim

IPC分类号： C03B37/07 ,  C03B37/018 ,  F27B1/26

CPC分类号： C03B37/0142 ,  C03B2207/50 ,  C03B2207/70

摘要： Vapor Axial Deposition (VAD) apparatus and method is provided. The VAD apparatus includes a first torch, a second torch, a thermometer, a controller, and a moving device. The first torch grows a core by depositing a soot at an end of a soot preform arranged on an axis. The second torch grows a clad by depositing a soot on the face of the core. The thermometer detects the temperature of the end of the soot preform along the axis and the temperature of an other/lower portion of the core. The controller calculates a difference between a temperature (T1) of the end of the soot preform and a temperature (T4) of a lower portion of the core and controls the movement of the soot preform according to the difference. The moving device moves the soot preform along the axis according to the instruction of the controller.

摘要翻译： 提供蒸气轴向沉积（VAD）装置和方法。 VAD装置包括第一炬，第二炬，温度计，控制器和移动装置。 第一个火炬通过在布置在轴上的烟灰预制件的端部沉积烟灰来生长核心。 第二个火炬通过在核心的表面上放置一个烟灰来生长一个包裹。 温度计检测烟炱预制件的端部沿着轴的温度和芯的另一/下部的温度。 控制器计算烟灰预制件的端部的温度（T 1）与芯部的下部的温度（T 4）之间的差异，并根据差异来控制烟灰预制件的移动。 移动装置根据控制器的指示沿着轴移动烟灰预制件。

公开(公告)号：US20070089464A1

公开(公告)日：2007-04-26

申请号：US11489883

申请日：2006-07-20

申请人： Yun-Ho Kim ,  Mun-Hyun Do ,  Ho-Jin Lee ,  Jin-Seong Yang ,  Jae-Hyeon Seong

发明人： Yun-Ho Kim ,  Mun-Hyun Do ,  Ho-Jin Lee ,  Jin-Seong Yang ,  Jae-Hyeon Seong

IPC分类号： C03B37/07 ,  C03B37/018

CPC分类号： C03B37/01413 ,  C03B2207/81 ,  C03B2207/87 ,  Y02P40/57

摘要： An apparatus for fabricating a soot preform includes at least one torch for depositing soot generated by flame hydrolysis on the soot preform. A vaporizer vaporizes a liquid source material. A heater heats a dilution gas. The vaporizer and the heater respectively supply, to the torch, the vaporized source material and the heated dilution gas together through a single pipe.

摘要翻译： 用于制造烟灰预制件的装置包括至少一个用于在烟炱预制件上沉积通过火焰水解产生的烟灰的炬。 蒸发器蒸发液体源材料。 加热器加热稀释气体。 蒸发器和加热器分别通过单个管道将蒸发的源材料和加热的稀释气体一起提供给割炬。

公开(公告)号：US20060185398A1

公开(公告)日：2006-08-24

申请号：US11348390

申请日：2006-02-06

申请人： Jin-Haing Kim ,  Se Park ,  Mun-Hyun Do

发明人： Jin-Haing Kim ,  Se Park ,  Mun-Hyun Do

IPC分类号： C03B37/07 ,  C03B37/018

CPC分类号： C03B37/01807 ,  C03B2201/31 ,  C03B2203/26 ,  C03B2207/70

摘要： A method for fabricating a multimode optical fiber preform having a longitudinal uniformity is provided. The method of fabricating includes performing a plurality of radial deposition passes using a thermal source while inserting raw materials into a glass tube. A reference chemical core shape index is set to determine a refractive index profile of a preform section. A core shape index distribution of each longitudinal deposition pass varying in a longitudinal direction of the glass tube is set such that an error of a reference chemical core shape index distribution in the longitudinal direction of the preform defined by the reference chemical core shape index is compensated for and such that a uniform chemical core shape index is obtained in the longitudinal direction. Deposition is performed while an amount of raw materials corresponding to a preset chemical core shape index is inserted in each longitudinal deposition pass of each radial deposition pass.

摘要翻译： 提供了一种制造具有纵向均匀性的多模光纤预制件的方法。 制造方法包括在将原材料插入玻璃管中时使用热源进行多个径向沉积通道。 设定参考化学品核心形状指数以确定预制件部分的折射率分布。 设定在玻璃管的长度方向上变化的各纵向沉积通路的芯形指数分布，使得由参考化学核心形状指数所限定的预成型件在长度方向上的基准化学品核心形状指数分布的误差被补偿 并且使得在纵向方向上获得均匀的化学核心形状指数。 在每个径向沉积通道的每个纵向沉积通道中插入对应于预设化学核心形状指数的原料的量的沉积。

公开(公告)号：US06987923B2

公开(公告)日：2006-01-17

申请号：US10638985

申请日：2003-08-12

申请人： Se Ho Park ,  Jin-Seong Yang ,  Mun-Hyun Do

发明人： Se Ho Park ,  Jin-Seong Yang ,  Mun-Hyun Do

IPC分类号： G02B6/00

CPC分类号： H01S3/06708 ,  C03C13/044 ,  C03C13/046

摘要： Disclosed is an amplifying optical fiber for amplifying optical signal transmitted therethrough by stimulated emission, the amplifying optical fiber comprising: an inner core disposed at a center of said optical fiber and containing MX, GaS3/2 and RE; an outer core surrounding said inner core and containing SiO2; and a cladding surrounding said outer core and containing SiO2, wherein said M contained in MX is one component selected from the group consisting of Na, K, Rb and Cs; said X contained in MX is one component selected from the group consisting of F, Cl, Br, and I; and said RE is one component selected from the group consisting of Ce, Pr, Pm, Nd, Sm, Eu, Gd, Tb, Ho, Dy, Er, Tm and Yb.

摘要翻译： 公开了一种放大光纤，用于通过受激发射放大透过其的光信号，放大光纤包括：设置在所述光纤中心并包含MX，GaS 3/2和RE的内核 ; 围绕所述内芯并包含SiO 2的外核; 以及围绕所述外芯并包含SiO 2的包层，其中MX中所含的M是选自Na，K，Rb和Cs中的一种成分; MX中所含的X是选自F，Cl，Br和I的一个组分; 所述RE为选自Ce，Pr，Pm，Nd，Sm，Eu，Gd，Tb，Ho，Dy，Er，Tm和Yb中的一种成分。

公开(公告)号：US06954573B2

公开(公告)日：2005-10-11

申请号：US10188477

申请日：2002-07-03

申请人： Jeong-Sik Cho ,  Mun-Hyun Do ,  Jin-Seong Yang ,  Sung-Wook Choi

发明人： Jeong-Sik Cho ,  Mun-Hyun Do ,  Jin-Seong Yang ,  Sung-Wook Choi

IPC分类号： G02B6/036 ,  G02B6/02 ,  G02B6/028 ,  H04J14/02 ,  G02B6/16

CPC分类号： G02B6/0283 ,  G02B6/02261 ,  G02B6/03627 ,  G02B6/03688

摘要： A wide band dispersion-controlled fiber which comprises a core forming an optical signal transmission path and having a peak refractive index, and a cladding surrounding the core and having a peak refractive index lower than the peak refractive index of the core. The wide band dispersion-controlled fiber further comprises at least one dispersion control layer arranged between the core and the cladding and having a refractive index profile such that its refractive index increases from an inner periphery to an outer periphery. The minimum refractive index of the dispersion control layer is less than the peak refractive indices of the core and cladding.

摘要翻译： 一种宽带色散控制光纤，其包括形成光信号传输路径并具有峰值折射率的芯，以及包围该芯并具有低于该芯的峰值折射率的峰值折射率的包层。 宽带色散控制光纤还包括布置在芯和包层之间的至少一个色散控制层，并且具有折射率分布，使得其折射率从内周向外周增加。 色散控制层的最小折射率小于芯和包层的峰值折射率。

公开(公告)号：US06840063B2

公开(公告)日：2005-01-11

申请号：US10059342

申请日：2002-01-31

申请人： Sung-Koog Oh ,  Man-Seok Seo ,  Jin-Seong Yang ,  Mun-Hyun Do

发明人： Sung-Koog Oh ,  Man-Seok Seo ,  Jin-Seong Yang ,  Mun-Hyun Do

IPC分类号： C03B37/027 ,  C03B37/012 ,  C03B37/018 ,  G02B6/00

CPC分类号： C03B37/01248 ,  C03B37/01257 ,  C03B37/01853 ,  C03B37/01869

摘要： An optical fiber preform manufacturing method whereby a clad layer and core layer are deposited on the inner surface of a preform tube for forming a deposited tube. One end of the deposited tube is shrunk and closed. The deposited tube which has a closed end is arranged extending vertically through a circular heater. A heat is applied to the deposited tube at a temperature lower than the softening point of a deposited tube, exhausting contaminants existing in the interior of the deposited tube while moving the circular heater. The heating temperature of the circular heater is then set to a temperature not lower than the softening point of the deposited tube-to shrink and close the deposited tube.

摘要翻译： 一种光纤预制棒的制造方法，其中包覆层和芯层沉积在用于形成沉积管的预成型管的内表面上。 沉积管的一端收缩并闭合。 具有封闭端的沉积管布置成垂直延伸通过圆形加热器。 在低于沉积管的软化点的温度下对沉积的管施加热量，在移动圆形加热器的同时排出存在于沉积管内部的污染物。 然后将圆形加热器的加热温度设定为不低于沉积管的软化点的温度 - 收缩并封闭沉积的管。

公开(公告)号：US06647162B2

公开(公告)日：2003-11-11

申请号：US09803873

申请日：2001-03-13

申请人： Dug-Young Kim ,  Yong-Woo Park ,  Un-Chul Paek ,  Mun-Hyun Do

发明人： Dug-Young Kim ,  Yong-Woo Park ,  Un-Chul Paek ,  Mun-Hyun Do

IPC分类号： G01N2100

CPC分类号： G01L1/242 ,  G01L5/0047

摘要： Disclosed is an apparatus for measuring a residual stress and a photoelastic effect of an optical fiber, which includes: a light source; a rotary type optical diffuser distanced from the light source in a predetermined distance for suppressing the spatial coherence of a light radiated in the light source; an optical condenser for condensing the radiated light passed through the optical diffuser into a spot where the optical fiber is located; a polarizer for polarizing the light passed through the optical condenser into a 45° linear polarized light from an axis of the optical fiber; a polarization analyzer, installed at 90° angle with respect to the polariscope and attached closely with the optical fiber, to prevent the penetration by the background image of the optical fiber; an optical fiber strain unit including a strain sensor for straining the optical fiber on the polarization analyzer toward a longitudinal direction and measuring the strain on the optical fiber; an object lens for magnifying the image of the light penetrated through the optical fiber; and a charge coupled device (CCD) array for measuring the penetration variation of the optical fiber caused from the strain caused by the optical fiber strain unit over the optical fiber.

摘要翻译： 公开了一种用于测量光纤的残余应力和光弹性效应的装置，其包括：光源; 旋转型光学扩散器，其以预定距离从光源远离，以抑制在光源中照射的光的空间相干性; 用于将通过光漫射器的辐射光聚光到光纤所在的光点的光学冷凝器; 用于将通过所述光学冷凝器的光偏振成从所述光纤的轴线成45°线偏振光的偏振器; 极化分析仪，相对于偏振器安装在90°角并与光纤紧密连接，以防止光纤的背景图像穿透; 光纤应变单元，包括：应变传感器，用于使所述偏振分析仪上的光纤向纵向拉伸;测量所述光纤上的应变; 用于放大穿过光纤的光的图像的物镜; 以及用于测量由光纤应变单元在光纤上引起的应变引起的光纤的穿透变化的电荷耦合器件（CCD）阵列。

公开(公告)号：US06449416B1

公开(公告)日：2002-09-10

申请号：US09222762

申请日：1998-12-30

申请人： Ji-Hoon Lee ,  Mun-Hyun Do

发明人： Ji-Hoon Lee ,  Mun-Hyun Do

IPC分类号： G02B622

CPC分类号： G02B6/03633 ,  G02B6/02238 ,  G02B6/0281 ,  G02B6/0285 ,  G02B6/03638

摘要： A dispersion shifted optical fiber includes: a first core having a constant refractive index within a predetermined radius from the center of an optical fiber, a second core which covers the first core and has a refractive index which decreases from the refractive index of the first core with an increase in its radius, and a cladding which covers the second core and has a refractive index smaller than the minimum refractive index of the second core. Accordingly, the core structure of an optical fiber is controlled, and the optical fiber has a refractive index distribution being a complex of a staircase type having low dispersion and a triangular type having low loss, thus resulting in an optical fiber having low dispersion and low loss.

摘要翻译： 色散位移光纤包括：具有从光纤中心起的预定半径内具有恒定折射率的第一芯体，覆盖第一芯体并具有从第一芯体的折射率减小的折射率的第二芯体 其半径增加，覆盖第二芯的折射率小于第二芯的最小折射率的包层。 因此，光纤的芯结构被控制，并且光纤的折射率分布是具有低色散的阶梯型和具有低损耗的三角形类型的复合物，因此导致具有低色散和低的光纤 失利。

公开(公告)号：US20060185399A1

公开(公告)日：2006-08-24

申请号：US11243703

申请日：2005-10-05

申请人： Myung-Hwan Pyo ,  Jin-Seong Yang ,  Mun-Hyun Do

发明人： Myung-Hwan Pyo ,  Jin-Seong Yang ,  Mun-Hyun Do

IPC分类号： C03B37/018

CPC分类号： C03B37/01493 ,  C03B37/0142 ,  C03B2207/50 ,  C03B2207/64 ,  C03B2207/66

摘要： Disclosed is an apparatus for fabricating an optical fiber preform through an external vapor deposition process. The apparatus includes a lathe on which a primary preform is rotatably mounted by chucks, a burner assembly including a burner installation block having an inclined surface and a plurality of burners installed on the inclined surface of the burner installation block in such a manner that the burners spray flames and source gas towards the primary preform with mutually different spraying angles, and a carrier unit for moving the burner assembly lengthwise along the primary preform.

摘要翻译： 公开了一种通过外部气相沉积工艺制造光纤预制件的装置。 该装置包括车床，初级预制件通过卡盘可旋转地安装在其上，燃烧器组件包括具有倾斜表面的燃烧器安装块和安装在燃烧器安装块的倾斜表面上的多个燃烧器，使得燃烧器 以相互不同的喷射角向主预制件喷射火焰和源气体，以及用于沿着初级预型件纵向移动燃烧器组件的载体单元。